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BlackMagic Pocket Cinema Camera 4K
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  • @Lohmatij

    You better make new topic on this if you like.

    CinemaDNG had been originally engineered to avoid RED patents (as they have broader patents on raw video, not only on wavelet raw). Idea had been to have each frame stored as photo, very inconvenient, but it worked for good time.

  • @Lohmatij DNG and CinemaDNG are two different beasts. RED has patents on any form of compressed RAW video recording, at least for the U.S. (but that's enough for other companies not to mess with RED): https://www.red.com/legal/patent https://patents.justia.com/assignee/red-com-inc

    That RED is suing all companies that implement compressed RAW video recording has been known since Atomos signed a licensing deal with RED for Prores RAW: https://ymcinema.com/2019/01/24/atomos-agrees-to-partner-with-red-instead-of-getting-into-court-due-to-infringement-of-reds-patents/

    Previously, RED sued Sony for the same, but got countersued for infringing on other Sony patents, so that both companies eventually settled in court.

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  • Finally got one of the last "old" BMPCC 4k...

    What is the fastest WORKING USB-C SSD for the Pocket?

    (I did try a Crucial MX500 1TB with a Icybox SATA III to USB-C enclosure, but teh camera doesn't see the drive.)

  • @Psyco

    Glad you got an "old" camera! I'm using a Crucial MX500 2TB with no problems.

    Forget the enclosure. Get this instead:

    https://www.amazon.com/gp/product/B00ZPKNQYW/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8&psc=1

  • @Ralph_B

    I'm talking about the m.2 MX500, not the 2.5" version - its a different interface.

    Whats the maximum speed you get with your setup? Can you record 4k DCI 60fps uncompressed?

  • @Psyco

    I'm recording 4k 60p at 4:1 with no issues. I've not tried any lower compression because I find 4:1 to be absolutely perfect for my needs, which is high quality green screen compositing.

  • @Ralph_B

    Ok, thats reasonable. But I'm looking for an option that would allow me to record 4k DCI 60fps uncompressed IF I ever need it. (I will however use the setup in 3:1 or 4:1 most of the time.)

    The question is: Is it possible to get 560 MB/s data write speed (+protocoll overhead) on the SATA III interface of the BMPCC 4k? I would like to test this by using a drive that can perform even faster (USB-C = USB 3.1 Gen2 can be faster than that) and pushing the Pocket to the absolut limit... and see if the controller melts;-)

    The problem is not to find a fast drive (e.g. my HyperX M.2 SSD can do 1GB/s and even is AHCI), but to find an USB-C adapter that uses a compatible chip. The ASMedia chips seem to work, like the ASM235CM, but I haven't found an enclosure with such a chip that fits a fast drive.

  • Update about Firmware downgrades:

    BM switch the downgrade option of at a specific "date of production". So even some of the "BRAW" Pockets might be downgradeable... (but I don't know the exact date or how to find out which date or serial number is "old" vs. "new".

    Its still a very big fuckup and I hope that someone can hack that 6.1 Update-Tool to work with all Pockets.

  • I really wonder what on earth Brandon was doing to claim the battery life is under 20 minutes on an LP-E6. On the later firmwares the battery life is improved and I can get close to an hour out of my aftermarket ones. Even on the original firmware and the provided BMD battery though you should at least get double his claim.